<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>主界面</title>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0-beta3/css/all.min.css">
    <script src="https://cdn.tailwindcss.com"></script>
    <style>
        body {
            font-family: 'Arial', sans-serif;
            background: linear-gradient(135deg, #74ebd5, #acb6e5);
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
            color: #fff;
        }

        .main-container {
            text-align: center;
        }

        .main-container h1 {
            font-size: 3em;
            margin-bottom: 20px;
            text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.5);
        }

        .main-container button {
            padding: 15px 30px;
            background-color: #007BFF;
            color: #fff;
            border: none;
            border-radius: 5px;
            font-size: 1.2em;
            cursor: pointer;
            transition: background-color 0.3s ease-in-out;
        }

        .main-container button:hover {
            background-color: #0056b3;
        }
    </style>
</head>

<body>
    <div class="main-container">
        <h1>欢迎来到主界面</h1>
        <button onclick="window.location.href='login.html'">登录</button>
    </div>
</body>

</html>    